US4696713A - Method and apparatus for pressing laminated glass - Google Patents

Method and apparatus for pressing laminated glass Download PDF

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Publication number
US4696713A
US4696713A US06/825,964 US82596486A US4696713A US 4696713 A US4696713 A US 4696713A US 82596486 A US82596486 A US 82596486A US 4696713 A US4696713 A US 4696713A
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United States
Prior art keywords
roll
data
press
laminated glass
rolls
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Expired - Lifetime
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US06/825,964
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English (en)
Inventor
Masaharu Okafuji
Yoshinori Ochi
Atsushi Miyake
Junichi Noguchi
Ichiro Matsuo
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Nippon Sheet Glass Co Ltd
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Nippon Sheet Glass Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10816—Making laminated safety glass or glazing; Apparatus therefor by pressing
    • B32B17/10825—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts
    • B32B17/10862—Isostatic pressing, i.e. using non rigid pressure-exerting members against rigid parts using pressing-rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50353—Tool, probe inclination, orientation to surface, posture, attitude

Definitions

  • the present invention relates to a method and apparatus used in an adhesion process for adhering laminated glass (safety glass) such as a windshield of a vehicle.
  • a plurality of sheets of plate glass are adhered together through a plastic film such as a polyvinyl butyral film to prepare so-called safety glass.
  • a plastic film such as a polyvinyl butyral film
  • Such laminated glass is prepared such that adhesion interlayers are inserted between the plastic film and the sheets of plate glass and are preliminarily adhered thereto.
  • the resultant structure is finally pressed in an autoclave.
  • the preliminary adhesion is performed to remove bubbles, water content and residual steam from the adhesion layers.
  • an apparatus is used wherein the laminated glass is passed through a pair of press rolls.
  • a pair of press rolls are vertically disposed, and a worker at the insertion side inserts laminated glass into the pair of press rolls and another worker at the exhaustion side picks it up from the pair of press rolls.
  • This apparatus has disadvantages in that the operation requires much labor and a uniform pressure cannot be obtained when the laminated glass has a complicated three-dimensional surface.
  • a conventional automatic press roll apparatus has been used to automatically perform the preliminary adhesion process for a three-dimensional glass surface.
  • each of the pair of press rolls is divided into a plurality of annular segments. Some of the roll segments can then be inclined in accordance with the curved surface of the laminated glass.
  • all the roll segments are supported by a rotational frame.
  • the rotational frame swings in accordance with the curved surface of the glass so as to apply a constant press pressure to the glass surface in the direction perpendicular to the glass surface.
  • This conventional automatic press roll apparatus also has a counterbalance mechanism for cancelling the weights of the press rolls so as to obtain a constant press pressure when the rotational frame swings and the pressure application direction is inclined with respect to the vertical direction (the direction of gravity).
  • This press roll apparatus is effective for automatically pressing the laminated glass having a relatively simple three-dimensional surface.
  • the rotational frame and the counterbalance mechanism are driven by a guide cam corresponding to each three-dimensional surface.
  • the guide cam must be replaced with another guide cam corresponding to the surface of the windshield in accordance with the type of vehicle. Therefore, this conventional press roll apparatus is not suitable for mass production of different types of windshield.
  • press rolls which receive laminated glass having an adhesion film between sheets of plate glass.
  • the press rolls are rotatably supported on a roll frame, and the roll frame can be pivoted such that the direction of pressure application is substantially normal to the curved surface of the laminated glass.
  • the roll frame is supported by a support frame such that the pressure application point can be vertically displaced along a direction perpendicular to the major three-dimensional surface.
  • the rotation of the press rolls, the angular displacement of the roll frame, and the level change of the roll frame are performed by respective driving sources which are controlled by a control device in accordance with prestored data.
  • the press roll apparatus can automatically press laminated glass having any three-dimensional surface in accordance with the prestored data without the need for partially modifying the apparatus.
  • FIG. 1 is a perspective view of a windshield of a vehicle which has been subjected to preliminary adhesion
  • FIG. 2 is a side view schematically showing a press roll apparatus according to an embodiment of the present invention
  • FIG. 3 is a side view of the apparatus of FIG. 2 so as to explain the preliminary adhesion, when viewed from the same side as in FIG. 2;
  • FIG. 4 is a front view of a press roll unit 3 of the apparatus of FIG. 1;
  • FIG. 5 is a sectional view of the press roll unit along a line V--V of FIG. 4;
  • FIG. 6 is a sectional view of the press roll unit along a line VI--VI of FIG. 4;
  • FIG. 7 is a side view of the press roll unit along an arrow VII of FIG. 4;
  • FIG. 8 is a block diagram of a control section of the press roll apparatus shown in FIG. 2;
  • FIGS. 9I to 9VI are respectively sectional views for explaining the operation of the press roll apparatus of FIG. 2;
  • FIG. 10 is a flow chart for explaining the operation of a glass hold roll and press rolls
  • FIG. 11 is a flow chart for explaining the velocity synchronism operation between a supply conveyor and a take-up conveyor
  • FIG. 12A is a sectional view of the laminated glass showing teaching sampling points
  • FIG. 12B is an enlarged sectional view showing part of the laminated glass of FIG. 12A;
  • FIG. 13 is a front view of an operation panel of a teaching box
  • FIGS. 14A to 14C are respectively flow charts for explaining the teaching operation.
  • FIG. 15 is a flow chart for schematically explaining the NC (numerical control) operation.
  • FIG. 1 is a perspective view of a windshield of a vehicle which has been subjected to preliminary adhesion.
  • a windshield comprising a glass plate 1 typically has a complicated three-dimensional surface curved along x-, y- and z-axes.
  • a central portion a of the glass plate 1 is substantially flat, and two wing portions b and c are greatly bent.
  • An intermediate portion from the wing portion b to the wing portion c is moderately bent in a convex shape.
  • the radius of curvature in an upper side portion d is different from that in a lower side portion e.
  • An intermediate portion from the upper side portion d to the lower side portion e is also moderately bent.
  • FIG. 2 is a side view schematically showing the preliminary adhesion press roll apparatus according to an embodiment of the present invention.
  • the two-layer glass plate 1 having an adhesion interlayer between two sheets of plate glass is fed by a supply conveyor 2 along the x-axis in FIG. 1 and is pressed between upper and lower rolls 4 and 5 of a press roll unit 3.
  • the glass plate 1 passing through the press roll unit 3 is taken up by a take-up conveyor 6.
  • the upper and lower rolls 4 and 5 are rotatably supported by a roll frame 7.
  • the roll frame 7 is mounted on a support frame to be vertically movable (along directions indicated by arrows A and A' in FIG. 2) and to be pivotal about a contact line between the upper and lower rolls 4 and 5 along the directions indicated by arrows B.
  • the pivotal and vertical movements of the roll frame 7 are controlled by an NC (numerical control) machine in accordance with numerical data prestored in correspondence to the shape of the glass plate 1.
  • the pivot angle of the roll frame can be automatically controlled such that a line connecting the axes of the upper and lower rolls 4 and 5 (i.e., the line of action of the press pressure) is normal to the glass plate 1.
  • the height (i.e., the height of the point of action of the press pressure) of the roll frame 7 is automatically controlled such that the glass plate 1 will not be vertically moved while passing through the press roll unit but instead will be fed along only in the horizontal direction.
  • the rotational speed of the upper and lower rolls 4 and 5 is controlled by the NC machine in accordance with the prestored numerical data.
  • the roll frame 7 is controlled to be movable relative to the glass plate 1 along the x-axis (horizontal) and the y-axis (vertical) of FIG. 1.
  • the line of action of the press pressure acts on the glass surface in a direction perpendicular thereto.
  • a displacement (alignment) along the x-axis corresponds to the angular interval of the upper and lower rolls 4 or 5 and that the upper and lower rolls 4 and 5 as tools are moved along the y-axis.
  • the above assumption can be applied if these two differences are excluded.
  • the preliminary adhesion press roll apparatus of this embodiment has a pair of glass hold rolls 8 for firmly holding the glass plate 1 so as to feed it to the press roll unit 3.
  • the pair of glass hold rolls 8 are disposed along the width of the supply conveyor 2 in the vicinity of the terminal portion of the conveyor 2 and are vertically movably and rotatably mounted at bifurcated distal ends of rod 10 of air cylinder 9, respectively.
  • the glass hold rolls 8 are moved downward immediately before the glass plate 1 is clamped between the upper and lower rolls 4 and 5.
  • the glass plate 1 is urged by the glass hold rolls 8 against the supply conveyor 2.
  • the glass hold rolls 8 are moved upward immediately after the glass plate 1 is firmly fed into the press roll unit 3.
  • Glass hold rolls 11 having the same construction as the rolls 8 are mounted above the take-up conveyor 6.
  • the rolls 11 are vertically movably and rotatably mounted at distal ends of rods 13 of air cylinders 12, respectively.
  • the glass plate 1 passing through the press roll unit 3 is temporarily held on the conveyor 6 by the rolls 11. Therefore, the glass plate 1 can be taken up by the take-up conveyor 6 without being distorted on the horizontal plane.
  • FIG. 3 is a side view of the press roll apparatus when viewed from the same side as illustrated in FIG. 2, but showing a different state of preliminary adhesion.
  • the roll frame 7 Upon horizontal displacement of the glass plate 1, the roll frame 7 is gradually pivoted such that the press pressure acts on the surface of the glass plate 1 in a direction perpendicular to the surface thereof.
  • the press roll unit 3 stands substantially upright when it is located at the center of the glass plate 1 along the feeding direction, as shown in FIG. 3.
  • the height of the roll frame 7 also changes in accordance with the height of the surface of the glass plate 1. It is apparent from the shape of the glass plate 1 that the inclination and height of the roll frame 7 are inverted after the state shown in FIG. 3. Further illustration need not be provided since the symmetrical view about the vertical line corresponding to the arrows A and A' (FIG. 2) shows the end of preliminary adhesion.
  • FIG. 4 is a front view of the press roll unit 3
  • FIG. 5 is a sectional view thereof along the line V--V of FIG. 4
  • FIG. 6 is a sectional view thereof along the line VI--VI
  • FIG. 7 is a side view thereof along the arrow VII of FIG. 4.
  • each of the upper and lower rolls 4 and 5 is divided into a plurality of segments.
  • Three central segments comprise drive rolls 4a or 5a, and right six segments and left five segments comprise free rolls 4b or 5b which can be inclined along the curved surface of the glass plate 1 and which cannot be externally driven.
  • each pair of drive rolls 4a and 5a are rotatably supported by shafts 16a and 16b at distal ends of a pair of support arms 15a and 15b, respectively.
  • the pair of drive rolls 4a and 5a are mounted on the roll frame 7 so as to clamp the glass plate 1 through the support arms 15a and 15b, respectively.
  • the upper roll 4a is biased by a bellofram cylinder 17.
  • the lower roll 5a is driven by a timing belt 21 looped between a gear 19 mounted on a drive shaft 18 and a gear 20 mounted on the roll 5a.
  • each pair of free rolls 4b and 5b is supported by support arms 24a and 24b having orthogonal axes 22a and 22b, and 23a and 23b to be rotated along the feed direction of the glass plate 1 and to be inclined along the curved surfaces of the glass plate 1, as shown in FIG. 6, respectively.
  • the upper roll 4b is biased downward by a corresponding bellofram cylinder 25.
  • the roll frame 7 for supporting the drive rolls 4a and 5a and the free rolls 4b and 5b is pivotally supported by lift frames 29 and 30 respectively through a shaft 28 and a hollow shaft 27 whose axes correspond to a contact line between the upper roll 4 and the lower roll 5.
  • the drive shaft 18 for rotating the drive rolls 5a extends at the side surface of the roll frame 7 and is coupled to a shaft 32 extending through a space of the hollow shaft 27 through a transmission mechanism 31 made of a chain and sprockets.
  • the shaft 32 is driven by a motor 26 fixed at the distal end of the lift frame 30.
  • the shaft 28 of the roll frame 7 extends through a bearing of the lift frame 29 and is coupled to a swinging mechanism 33, thereby swinging the roll frame 7 about the shafts 27 and 28.
  • the lift frames 29 and 30 are slidably mounted in columns 34 and 35 and can be vertically moved by a lift mechanism 37 mounted on a beam 36 extending across the distal ends of the columns 34 and 35.
  • FIG. 7 is a side view of the press roll unit and its peripheral components.
  • the lift frame 29 is slidably supported in the column 34 through two guide rods 39 and 40 and can be vertically moved upon rotation of a screw rod of the lift mechanism 37.
  • Screw rods 41 and 42 of the lift frames 29 and 30 are driven by a motor 46 through reduction gear mechanisms 44 and 45 (FIG. 4) coupled through a shaft 43.
  • Air cylinders 47 and 48 are mounted as dampers at the lower ends of the lift frames 29 and 30, respectively.
  • the swinging mechanism 33 is mounted at the lower end of the lift frame 29.
  • the swinging mechanism 33 comprises a worm wheel 50 mounted at the distal end of the shaft 28 of the roll frame 7, a worm 51 and a motor 52 for driving the worm 51, as shown in FIG. 7.
  • FIG. 8 is a block diagram of a control section of a preliminary adhesion press roll apparatus.
  • the control section comprises a microcomputer which includes a CPU 54, a RAM 55 and data bus 56.
  • the control section is connected to the press roll unit 3 of FIGS. 2 to 7 through a plurality of interfaces.
  • Posture control (inclination angle and height) of the roll frame 7, rotational speed control of the rolls 4 and 5, and conveyor speed control are performed in accordance with the control data stored in a data floppy disk 57 and the control program stored in a program floppy disk 58.
  • the data read out from the floppy disks 57 and 58 are stored in the RAM 55 through an floppy disk interface 59.
  • the CPU 54 controls the overall operation of the roll press apparatus in accordance with the program stored in the RAM 55.
  • the data are sequentially read out from the RAM 55 and are supplied to NC control interfaces 60 to 62.
  • Servo controllers 63 to 65 are operated in response to control outputs from the NC control interfaces 60 to 62 so as to drive the motors 26, 52 and 46, respectively.
  • a tachogenerator TG and a pulse generator PG are connected to each of the motors 26, 52 and 46.
  • An output from the tachogenerator TG is fed back to the corresponding one of the servo controllers 63 to 65, so that the corresponding one of the motors 26, 52 and 46 is controlled to have a specified rotational speed.
  • the output generated from each of the pulse generators PG corresponding to the corresponding one of the motors 26, 52 and 46 is fed back to the corresponding one of the NC control interfaces 60 to 62.
  • the posture (height and rotational angle) of the roll frame 7 and the angular interval of the rolls are NC-controlled in accordance with the outputs from the pulse generators PG and the control data from the CPU 54.
  • the control data represents 20 sampling points of the glass plate 1 along the x-axis, as will be described later.
  • the NC control interfaces 60 to 62 perform interpolation (primary or secondary interpolation) between every two adjacent sampling points in the same manner as in the conventional NC machine.
  • the synchronous operation of conveyor motors 68 and 69 is controlled so as to synchronize the translational speed of the glass plate 1 with the feeding speed of the supply and take-up conveyors 2 and 6 when the glass plate 1 is inserted between the upper and lower rolls 4 and 5 and passes therethrough.
  • Data representing the speeds of the conveyors 2 and 6 in accordance with the calculated results are supplied to D/A converters 70 and 71, respectively.
  • Outputs from the D/A converters 70 and 71 are supplied to servo controllers 72 and 73, respectively, thereby synchronizing the speeds of the conveyor motors 68 and 69.
  • the control of the glass hold rolls 8 and 11 at the time when the glass plate 1 is inserted between the press rolls 4 and 5 or removed therefrom can be performed such that a limit switch (to be described later) detects the position of the glass plate 1 on the corresponding conveyor and that the output of the pulse generator PG for the conveyor motor 68 or 69 is counted to estimate the insertion or removal position.
  • An output from the limit switch is supplied to the CPU 54 through an input port 74.
  • a pulse generator counter 75 is started under the control of the CPU 54 to count the PG output from the pulse generator of the motor 68 or 69.
  • a count of the PG counter 75 is supplied to the CPU 54 and when it reaches a predetermined value, the drive signal is supplied to the rolls 8 or 11 through an output port 76.
  • the input port 74 receives operation command inputs (e.g., automatic, manual and stop commands) of the apparatus and outputs display signals to monitor lamps for indicating the operating state.
  • a teaching box 77 is coupled to the input and output ports 74 and 76, so that the command or instruction data for teaching (to be described later) are supplied to the NC control interfaces 60 to 62 through the CPU 54.
  • Predetermined data ⁇ 0 and h 0 are supplied from the CPU 54 to the NC control interfaces 61 and 62 so as to determine that the posture (inclination angle ⁇ and height h) of the rolls 4 and 5 are set so as to allow insertion of the glass plate 1 therebetween, as shown in FIG. 9I.
  • the glass plate 1 is inserted between the upper and lower press rolls 4 and 5, thereby starting the preliminary adhesion operation.
  • the glass hold rolls 8 are moved upward, as shown in FIG. 9IV.
  • the inclination angle of the press rolls, the roll height, the angular rotational interval of the roll, and the roll rotational velocity ( ⁇ n , h n , l n and v n ) are NC-controlled in accordance with the data supplied from the CPU 54.
  • the velocities of the supply conveyor 2 and the take-up conveyor 6 are synchronized at the roll rotational velocity while the press rolls 4 and 5 are brought into tight contact with the glass plate 1, as shown in blocks III, IV and V of FIG. 10.
  • This synchronization control is performed in accordance with the flow chart of FIG. 11.
  • the rotational velocity V R (peripheral velocity) of the press roll is calculated
  • the horizontal translational velocity V R sin ⁇ ( ⁇ is the inclination angle of the press rolls 4 and 5 with respect to the vertical direction) of the glass plate 1 fed by the press rolls 4 and 5 is calculated
  • a velocity command is supplied to the D/A converters 70 and 71 of FIG. 8 so as to match the horizontal translational velocity of the glass plate with the conveyor velocity V c .
  • the velocity signal is supplied to the D/A converters 70 and 71 in such a manner that the conveyor velocity V c becomes a maximum velocity V max , as shown in the flow chart of FIG. 11. More particularly, referring to FIG. 9I, until the leading end of the glass plate 1 reaches the limit switch LS, the supply conveyor 2 is driven at the maximum velocity V max . However, when the leading end of the glass plate 1 reaches the press rolls 4 and 5, as shown in FIG. 9III, the velocity of the supply conveyor 2 is reduced from the maximum velocity V max to the predetermined insertion velocity.
  • the velocity of the supply conveyor 2 is increased to the maximum velocity V max .
  • the velocity of the take-up conveyor 6 is increased to the maximum velocity V max .
  • the position of the glass plate 1 can be calculated by the CPU 54 in accordance with the detection output from the limit switches LS and the PG outputs of the conveyor motors 68 and 69.
  • the press roll apparatus described above has a property of flexibility and so can be used for a glass plate having substantially any three-dimensional surface.
  • the apparatus can first be taught to give the necessary preliminary adhesion in individual glass plates having different three-dimensional surfaces.
  • complete playback can be performed.
  • the control data obtained from the different three-dimensional surfaces may be selectively used to perform-preliminary adhesion of any type of glass plates having different three-dimensional surfaces.
  • the teaching operation is performed by using 15 to 20 sampling points P 0 , P 1 , . . . along the cross section of the glass plate 1, as shown in FIG. 12A.
  • the position of each sampling point is represented by absolute coordinates with respect to an origin O in the x-y coordinate system. More precisely, the x coordinate is plotted along the curve of the glass plate 1.
  • distances between every two adjacent sampling points are given by angular displacements l 1 , l 2 , . . . of the contact position between the press roll 4 and 5, respectively.
  • the y coordinates correspond to positions representing the heights h 0 , h 1 , h 2 , . . . of the contact positions between the press rolls, respectively.
  • Teaching data at the respective sampling points also include inclination angles ⁇ 0 , ⁇ 1 , . . . of the line connecting the axes of the press rolls and rotational velocity data v 0 , v 1 , . . . at the contact positions between the press rolls, in addition to the above-mentioned angular displacement and height data. Therefore, the respective sampling points are defined by the following teaching data: ##EQU1## The teaching data of each sampling point of FIG. 12A is supplied to the CPU 54 every time a teaching operation is performed and is stored in a memory table of the RAM 55.
  • the real storage data in the RAM 55 is count data corresponding to the PG outputs from the pulse generators of the motors 26, 46 and 52 with respect to the reference position, excluding the rotational velocity data of the rolls.
  • This rotational velocity data is arbitrarily preset in accordance with the command from the teaching box 77.
  • the respective teaching data are supplied to the NC control interfaces 60 to 62 so as to perform 3-axis NC control in synchronism with the outputs from the PGs of the respective motors 26, 52 and 46.
  • the velocity data is supplied as a pulse rate (frequency) of a reference pulse generator of each NC control interface so as to distribute the reference pulses in accordance with a ratio of the relative coordinate data (h and l) of the sampling point P i to those of the adjacent sampling point P i+1 .
  • the motors 26 and 46 are rotated to drive the press rolls 4 and 5 from the point P i to the point P i+1 in accordance with the distributed pulses.
  • the motor 52 is driven in accordance with the inclination angle data ⁇ irrespective of the x-y coordinate system.
  • the interpolation between the two adjacent sampling points can be linear or arc interpolation.
  • FIG. 13 is a plan view of an operation panel 78 of the teaching box 77.
  • FIGS. 14A to 14C are respectively flow charts for explaining the teaching operation.
  • the teaching box 77 is started when an ENBL (enable) key 80 shown in FIG. 13 is depressed.
  • an enable flag is set at logic "1" to enable key input operations by other keys.
  • the enable flag is set at logic "0"
  • the key input operations by other keys are disabled.
  • an F ⁇ (forward) key 88 or an R ⁇ (reverse) key 89 is depressed, the rolls 4 and 5 are rotated in the forward or reverse direction so as to move the glass plate 1 forward or backward.
  • the keys 88 and 89 are used to select an x coordinate.
  • An ⁇ U (up) key 92 or ⁇ D (down) key 93 is depressed to move the roll frame 7 upward or downward to select a y coordinate.
  • An N (counterclockwise) 90 or an N (clockwise) key 91 is depressed to preset the inclination angle ⁇ (swinging angle) of the roll frame 7.
  • the rotational velocity of the rolls 4 and 5 can be controlled by an SPD ⁇ (speed up) key 86 or an SPD ⁇ (speed down) key 87 in, for example, 16 steps.
  • the velocity data is displayed on a display 97.
  • an INS (insert) key 81 and an REC (record) key 84 are depressed to store the data of the sampling point P i in the RAM 55 through the CPU 54.
  • an INS flag is set at logic "1”.
  • the REC key 84 is depressed, the data of the sampling point P i are stored in the RAM 55.
  • a STEP NEXT (step next) key 82 is depressed, as shown in FIG. 14C.
  • a STEP BACK (step back) key 83 is depressed.
  • the current step number (reference number of the sampling point P) is displayed on a display 96 in the operation panel 78.
  • an ERS (erase) key 94 is depressed, the storage data of the sampling point P i are erased, and the teaching point position is returned to the immediately preceding point.
  • an END (end) key 95 is depressed, thereby inserting the data of the start sampling point P 1 after the data of the end sampling point P n , as shown in FIG. 14C.
  • the following loop is formed, and the NC operation loop is completed.
  • NC control data stored by the teaching operation described above are stored in the data floppy disk 57 for each glass plate 1 having a different three-dimensional surface. Every time the type of glass plate conveyed along the preliminary adhesion production line changes, the corresponding data are read out from the floppy disk 57 and are stored in the RAM 55, thereby reproducing (playing back) the learned preliminary adhesion process in accordance with NC control.
  • FIG. 15 is a flow chart for explaining the NC control of preliminary adhesion.
  • the NC operation command is generated from the CPU 54 when the glass plate 1 is inserted between the upper and lower press rolls 4 and 5, as shown in FIG. 9III.
  • the 3-axis NC operation is thus started. Since the absolute coordinate data of the respective sampling points are given by teaching, the relative coordinates of the contact position between the press rolls are calculated in accordance with the absolute coordinates of the respective axes and the current coordinates thereof.
  • the NC control interfaces 60 to 62 receive the corresponding relative coordinate data.
  • the frequencies of the reference pulse generators of the NC control interfaces 60 to 62 are set in accordance with the rotational velocity data of the corresponding roll, thereby presetting the locus from the current point to the next point.
  • the operation commands are simultaneously supplied to the 3-axis NC control interfaces 60 to 62.
  • the NC control of the press rolls 4 and 5 is performed in accordance with linear or arc interpolation.
  • the end pulses from the NC control interfaces 60 to 62 are supplied to the CPU 54, and the position pointer is incremented by one.
  • the next point data are read out under the control of the CPU 54, and the coordinate calculation or the like is performed again.
  • preliminary adhesion of one glass plate is completed.
  • the press roll apparatus is then set in the standby state for receiving the next glass plate.
  • the rotational speed data of the roll is specified in units of teaching points (sampling points).
  • NC control may be performed at a constant velocity.
  • NC control may be performed such that the inclination angle ⁇ , the angular displacement l and the rotational velocity v are specified in units of teaching points, and the height data h (y-axis) may be calculated in accordance with vcos ⁇ so as to synchronize the lift frames 29 and 30.
  • the motors 26, 52 and 46 can be driven in response to outputs from the D/A converters 70 and 71 in the same manner as in the conveyor motors 68 and 69 of FIG. 8.
  • the roll frame is angularly displaced such that the line of action of the pressure of the press rolls is directed toward substantially normal to the curved surface of the laminated glass, and the roll frame is level-shifted such that the point of action of the press pressure follows the curved glass surface.
  • the rotation of the press rolls and the angular displacement and height of the roll frame are controlled in accordance with the preset data. Even if the laminated glass has a complicated three-dimensional surface, it can be pressed so as to follow the curved surface in accordance with the control data, thereby improving the press performance.
  • laminated glass sheets having different three-dimensional surfaces can be properly subjected to high-speed preliminary adhesion by merely changing the control data. As a result, the press efficiency can be greatly improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)
US06/825,964 1983-07-05 1986-02-05 Method and apparatus for pressing laminated glass Expired - Lifetime US4696713A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58-122198 1983-07-05
JP58122198A JPS6016839A (ja) 1983-07-05 1983-07-05 積層ガラスのプレスロ−ル装置

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US06627858 Continuation 1984-07-05

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US4696713A true US4696713A (en) 1987-09-29

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US06/825,964 Expired - Lifetime US4696713A (en) 1983-07-05 1986-02-05 Method and apparatus for pressing laminated glass

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US (1) US4696713A (enrdf_load_stackoverflow)
JP (1) JPS6016839A (enrdf_load_stackoverflow)
DE (1) DE3424802C2 (enrdf_load_stackoverflow)
FR (1) FR2548659B1 (enrdf_load_stackoverflow)
GB (1) GB2145369B (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4788911A (en) * 1986-01-07 1988-12-06 Libbey-Owens-Ford Co. Prepress apparatus for an assembly of stacked sheets
US4946523A (en) * 1988-12-22 1990-08-07 Ford Motor Company Method and apparatus for use in manufacturing safety glass laminates
US4988398A (en) * 1989-12-26 1991-01-29 Ppg Industries, Inc. Laminate prepress roll assembly
US4998784A (en) * 1988-08-31 1991-03-12 Ppg Industries, Inc. Automotive windshield for a head up display system
US5085141A (en) * 1988-11-14 1992-02-04 Saint-Gobain Vitrage International Device for the drive of driving rollers of a calender for laminated glazings and calender equipped with this device
US5109765A (en) * 1988-07-12 1992-05-05 Saint-Gobain Vitrage Device for assembling laminated glazings
US5136935A (en) * 1990-03-08 1992-08-11 Saint-Gobain Vitrage International Device for assembly of laminated glazings by pressing rollers supported by joint systems
US5173148A (en) * 1990-01-11 1992-12-22 Peter Lisec Installation for the production of insulating glass
US5300184A (en) * 1991-06-24 1994-04-05 Nippon Sheet Glass Co., Ltd. Press roll apparatus for manufacturing laminated glass
US20100012258A1 (en) * 2008-07-17 2010-01-21 Robert Burkle Gmbh Method and arrangement for the production of composite work pieces comprising layers laminated to each other
US20100218555A1 (en) * 2007-11-01 2010-09-02 Asahi Glass Company Limited Bending apparatus and bending method for a glass sheet
US20100243136A1 (en) * 2009-03-27 2010-09-30 Ausra, Inc. Method of Shaping a Reflector
CN103387345A (zh) * 2013-07-26 2013-11-13 辽宁北方玻璃机械有限公司 汽车玻璃滚压线
US20160214355A1 (en) * 2013-09-30 2016-07-28 Sekisui Chemical Co., Ltd. Intermediate film for laminated glass, and laminated glass
TWI554407B (zh) * 2013-04-04 2016-10-21 Kabushikikaisha Fuk Sticking device
US9555605B2 (en) 2012-10-22 2017-01-31 Lisec Austria Gmbh Device for laminating plate-shaped articles
WO2017134428A1 (en) * 2016-02-04 2017-08-10 Amscreen Group Limited Bonding components under pressure
US10648778B2 (en) * 2014-12-04 2020-05-12 Saint-Gobain Glass France Armored glazing manufactured from mass-produced laminated glazing constituents

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107113A (ja) * 1982-12-10 1984-06-21 Hashimoto Seisakusho:Kk バキユ−ムカ−の臭気ガス燃焼筒
DE3501631C2 (de) * 1985-01-19 1987-05-14 VEGLA Vereinigte Glaswerke GmbH, 5100 Aachen Vorrichtung zum Zusammenwalzen von Glasscheiben mit einer Kunststoffolie
FR2614834B1 (fr) * 1987-05-07 1989-06-16 Saint Gobain Vitrage Procede et dispositif pour le calandrage des vitrages feuilletes
JP4638086B2 (ja) * 2001-06-27 2011-02-23 三菱重工業株式会社 燃料制御装置
JP5508736B2 (ja) * 2009-02-12 2014-06-04 カヤバ工業株式会社 減容機
JP5508735B2 (ja) * 2009-02-12 2014-06-04 カヤバ工業株式会社 減容機
JP5678656B2 (ja) * 2010-12-29 2015-03-04 セントラル硝子株式会社 合わせガラスの予備接着装置
JP5339393B1 (ja) * 2013-05-07 2013-11-13 株式会社Ｆｕｋ 貼付装置

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380550A (en) * 1941-11-07 1945-07-31 American Rolling Mill Co Means for cleaning metal sheets
US2781534A (en) * 1952-06-24 1957-02-19 Pittsburgh Plate Glass Co Washer for bent laminated glass
GB784558A (en) * 1954-12-22 1957-10-09 Pittsburgh Plate Glass Co Improvements in or relating to apparatus for the pressing of bent laminated assemblies
US2831791A (en) * 1953-07-29 1958-04-22 Pittsburgh Plate Glass Co Method and apparatus for processing glass
CA576344A (en) * 1959-05-19 Pittsburgh Plate Glass Company Manufacture of laminated glass
US2926371A (en) * 1957-11-13 1960-03-01 Libbey Owens Ford Glass Co Edge treating apparatus
US2951254A (en) * 1957-07-22 1960-09-06 Osborn Mfg Co Machine for brushing flat surfaces
US3054344A (en) * 1955-05-02 1962-09-18 Libbey Owens Ford Glass Co Apparatus for pressing curved laminated safety glass
US3146696A (en) * 1960-11-04 1964-09-01 Ford Motor Co Glass prepressing rolls
US3351001A (en) * 1965-04-05 1967-11-07 Pittsburgh Plate Glass Co Preliminary pressing of bent glass laminated assemblies
US3694636A (en) * 1970-03-20 1972-09-26 Westinghouse Electric Corp Digital computer process control with operational learning procedure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE557855A (enrdf_load_stackoverflow) * 1956-08-03
US3048214A (en) * 1958-11-10 1962-08-07 Ford Motor Co Glass rolling apparatus
FR1548425A (enrdf_load_stackoverflow) * 1966-09-29 1968-12-06
US3476327A (en) * 1966-11-29 1969-11-04 Rohr Corp System for numerically controlling large masses
US4347927A (en) * 1980-06-23 1982-09-07 Libbey-Owens-Ford Company Sheet aligning apparatus

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA576344A (en) * 1959-05-19 Pittsburgh Plate Glass Company Manufacture of laminated glass
US2380550A (en) * 1941-11-07 1945-07-31 American Rolling Mill Co Means for cleaning metal sheets
US2781534A (en) * 1952-06-24 1957-02-19 Pittsburgh Plate Glass Co Washer for bent laminated glass
US2831791A (en) * 1953-07-29 1958-04-22 Pittsburgh Plate Glass Co Method and apparatus for processing glass
GB784558A (en) * 1954-12-22 1957-10-09 Pittsburgh Plate Glass Co Improvements in or relating to apparatus for the pressing of bent laminated assemblies
US3054344A (en) * 1955-05-02 1962-09-18 Libbey Owens Ford Glass Co Apparatus for pressing curved laminated safety glass
US2951254A (en) * 1957-07-22 1960-09-06 Osborn Mfg Co Machine for brushing flat surfaces
US2926371A (en) * 1957-11-13 1960-03-01 Libbey Owens Ford Glass Co Edge treating apparatus
US3146696A (en) * 1960-11-04 1964-09-01 Ford Motor Co Glass prepressing rolls
US3351001A (en) * 1965-04-05 1967-11-07 Pittsburgh Plate Glass Co Preliminary pressing of bent glass laminated assemblies
US3694636A (en) * 1970-03-20 1972-09-26 Westinghouse Electric Corp Digital computer process control with operational learning procedure

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4788911A (en) * 1986-01-07 1988-12-06 Libbey-Owens-Ford Co. Prepress apparatus for an assembly of stacked sheets
US5109765A (en) * 1988-07-12 1992-05-05 Saint-Gobain Vitrage Device for assembling laminated glazings
US4998784A (en) * 1988-08-31 1991-03-12 Ppg Industries, Inc. Automotive windshield for a head up display system
US5085141A (en) * 1988-11-14 1992-02-04 Saint-Gobain Vitrage International Device for the drive of driving rollers of a calender for laminated glazings and calender equipped with this device
US4946523A (en) * 1988-12-22 1990-08-07 Ford Motor Company Method and apparatus for use in manufacturing safety glass laminates
FR2656252A1 (fr) * 1989-12-26 1991-06-28 Ppg Industries Inc Appareil et procede pour presser ensemble des feuilles superposees pour former un produit feuillete tel un pare-brise.
US4988398A (en) * 1989-12-26 1991-01-29 Ppg Industries, Inc. Laminate prepress roll assembly
US5173148A (en) * 1990-01-11 1992-12-22 Peter Lisec Installation for the production of insulating glass
US5136935A (en) * 1990-03-08 1992-08-11 Saint-Gobain Vitrage International Device for assembly of laminated glazings by pressing rollers supported by joint systems
US5300184A (en) * 1991-06-24 1994-04-05 Nippon Sheet Glass Co., Ltd. Press roll apparatus for manufacturing laminated glass
US20100218555A1 (en) * 2007-11-01 2010-09-02 Asahi Glass Company Limited Bending apparatus and bending method for a glass sheet
US7992613B2 (en) * 2008-07-17 2011-08-09 Robert Burkle Gmbh Method and arrangement for the production of composite work pieces comprising layers laminated to each other
US20100012258A1 (en) * 2008-07-17 2010-01-21 Robert Burkle Gmbh Method and arrangement for the production of composite work pieces comprising layers laminated to each other
US20100243136A1 (en) * 2009-03-27 2010-09-30 Ausra, Inc. Method of Shaping a Reflector
US8277592B2 (en) * 2009-03-27 2012-10-02 Areva Solar, Inc. Method of shaping a reflector
US9555605B2 (en) 2012-10-22 2017-01-31 Lisec Austria Gmbh Device for laminating plate-shaped articles
TWI554407B (zh) * 2013-04-04 2016-10-21 Kabushikikaisha Fuk Sticking device
CN103387345A (zh) * 2013-07-26 2013-11-13 辽宁北方玻璃机械有限公司 汽车玻璃滚压线
CN103387345B (zh) * 2013-07-26 2016-08-17 辽宁北方玻璃机械有限公司 汽车玻璃滚压线
US20160214355A1 (en) * 2013-09-30 2016-07-28 Sekisui Chemical Co., Ltd. Intermediate film for laminated glass, and laminated glass
US11014340B2 (en) * 2013-09-30 2021-05-25 Sekisui Chemical Co., Ltd. Intermediate film for laminated glass, and laminated glass
US10648778B2 (en) * 2014-12-04 2020-05-12 Saint-Gobain Glass France Armored glazing manufactured from mass-produced laminated glazing constituents
WO2017134428A1 (en) * 2016-02-04 2017-08-10 Amscreen Group Limited Bonding components under pressure
GB2548787A (en) * 2016-02-04 2017-10-04 Amscreen Group Ltd Bonding components under pressure
GB2548787B (en) * 2016-02-04 2018-10-24 Amscreen Group Ltd Bonding components under pressure

Also Published As

Publication number Publication date
GB2145369A (en) 1985-03-27
FR2548659A1 (fr) 1985-01-11
GB2145369B (en) 1987-04-29
DE3424802A1 (de) 1985-01-17
GB8417219D0 (en) 1984-08-08
FR2548659B1 (fr) 1988-04-29
JPS6365624B2 (enrdf_load_stackoverflow) 1988-12-16
DE3424802C2 (de) 1997-12-11
JPS6016839A (ja) 1985-01-28

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